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author | Christian Grothoff <christian@grothoff.org> | 2012-10-24 09:26:44 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2012-10-24 09:26:44 +0000 |
commit | 3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3 (patch) | |
tree | e7763da882d38eeebd72fa49e0bbb4edc5b84842 /src/util | |
parent | 6f191f08a947e08d5d8ff842a29ba6f4b6611603 (diff) | |
download | gnunet-3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3.tar.gz gnunet-3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3.zip |
-speeding up baadf00d code by 7x (on i7)
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/Makefile.am | 8 | ||||
-rw-r--r-- | src/util/common_allocation.c | 11 | ||||
-rw-r--r-- | src/util/perf_malloc.c | 66 |
3 files changed, 80 insertions, 5 deletions
diff --git a/src/util/Makefile.am b/src/util/Makefile.am index 756f74ec4..239f3c91e 100644 --- a/src/util/Makefile.am +++ b/src/util/Makefile.am | |||
@@ -192,7 +192,8 @@ libgnunet_plugin_test_la_LDFLAGS = \ | |||
192 | 192 | ||
193 | if HAVE_BENCHMARKS | 193 | if HAVE_BENCHMARKS |
194 | BENCHMARKS = \ | 194 | BENCHMARKS = \ |
195 | perf_crypto_hash | 195 | perf_crypto_hash \ |
196 | perf_malloc | ||
196 | endif | 197 | endif |
197 | 198 | ||
198 | check_PROGRAMS = \ | 199 | check_PROGRAMS = \ |
@@ -499,6 +500,11 @@ perf_crypto_hash_SOURCES = \ | |||
499 | perf_crypto_hash_LDADD = \ | 500 | perf_crypto_hash_LDADD = \ |
500 | $(top_builddir)/src/util/libgnunetutil.la | 501 | $(top_builddir)/src/util/libgnunetutil.la |
501 | 502 | ||
503 | perf_malloc_SOURCES = \ | ||
504 | perf_malloc.c | ||
505 | perf_malloc_LDADD = \ | ||
506 | $(top_builddir)/src/util/libgnunetutil.la | ||
507 | |||
502 | 508 | ||
503 | EXTRA_DIST = \ | 509 | EXTRA_DIST = \ |
504 | test_configuration_data.conf \ | 510 | test_configuration_data.conf \ |
diff --git a/src/util/common_allocation.c b/src/util/common_allocation.c index ab8715a6d..1828d826a 100644 --- a/src/util/common_allocation.c +++ b/src/util/common_allocation.c | |||
@@ -222,11 +222,14 @@ GNUNET_xfree_ (void *ptr, const char *filename, int linenumber) | |||
222 | #if defined(M_SIZE) | 222 | #if defined(M_SIZE) |
223 | #if ENABLE_POISONING | 223 | #if ENABLE_POISONING |
224 | { | 224 | { |
225 | const uint64_t baadfood = GNUNET_ntohll (0xBAADF00DBAADF00DLL); | ||
226 | uint64_t *base = ptr; | ||
227 | size_t s = M_SIZE (ptr); | ||
225 | size_t i; | 228 | size_t i; |
226 | char baadfood[5] = BAADFOOD_STR; | 229 | |
227 | size_t s = M_SIZE (ptr); | 230 | for (i=0;i<s/8;i++) |
228 | for (i = 0; i < s; i++) | 231 | base[i] = baadfood; |
229 | ((char *) ptr)[i] = baadfood[i % 4]; | 232 | memcpy (&base[s/8], &baadfood, s % 8); |
230 | } | 233 | } |
231 | #endif | 234 | #endif |
232 | #endif | 235 | #endif |
diff --git a/src/util/perf_malloc.c b/src/util/perf_malloc.c new file mode 100644 index 000000000..31f08dff0 --- /dev/null +++ b/src/util/perf_malloc.c | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2012 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @author Christian Grothoff | ||
23 | * @file util/perf_malloc.c | ||
24 | * @brief measure performance of allocation functions | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_common.h" | ||
28 | #include "gnunet_crypto_lib.h" | ||
29 | #include "gnunet_time_lib.h" | ||
30 | #include <gauger.h> | ||
31 | |||
32 | static uint64_t | ||
33 | perfMalloc () | ||
34 | { | ||
35 | size_t i; | ||
36 | uint64_t ret; | ||
37 | |||
38 | ret = 0; | ||
39 | for (i=1;i<1024 * 1024;i+=1024) | ||
40 | { | ||
41 | ret += i; | ||
42 | GNUNET_free (GNUNET_malloc (i)); | ||
43 | } | ||
44 | return ret; | ||
45 | } | ||
46 | |||
47 | |||
48 | int | ||
49 | main (int argc, char *argv[]) | ||
50 | { | ||
51 | struct GNUNET_TIME_Absolute start; | ||
52 | uint64_t kb; | ||
53 | |||
54 | start = GNUNET_TIME_absolute_get (); | ||
55 | kb = perfMalloc (); | ||
56 | printf ("Malloc perf took %llu ms\n", | ||
57 | (unsigned long long) | ||
58 | GNUNET_TIME_absolute_get_duration (start).rel_value); | ||
59 | GAUGER ("UTIL", "Allocation", | ||
60 | kb / 1024 / (1 + | ||
61 | GNUNET_TIME_absolute_get_duration | ||
62 | (start).rel_value), "kb/s"); | ||
63 | return 0; | ||
64 | } | ||
65 | |||
66 | /* end of perf_malloc.c */ | ||